Fan blade



FIG. 1 is a perspective view of the present design;

FIG. 2 is a front view of the present design;

FIG. 3 is a right side view of the present design;

FIG. 4 is an inverted left side view of the present design; and,

FIG. 5 is a bottom view of the present design.

The broken line showing of portions of the fan blade is included for the purpose of illustrating environmental structure and forms no part of the claimed design. 

The ornamental design for a fan blade, as shown and described. 